A professional who tends machine that cuts rubber rods or bars into pencil erasers. Responsibilities include:

• Adjusts guides on machine to specified length and size of rods or bars to be cut.
• Starts machine and feeds prescribed colored rods or bars manually into device that feeds them to knives which cut them to specified size.
• Observes machine operation and spot checks length and size of plugs (erasers), using hand gauge to ensure conformity to specifications.